Hold anywhere to fire a tether at a rope point ahead. Let go to fly. Any point on screen ahead of you is in reach.

Swing low, release on the way up. Release rising and fast for a PERFECT: bonus points and a climbing combo. Hit ×8 for OVERDRIVE and smash through hazards.

The floor is lava. Watch for laser walls (one gap), yellow speed lasers (no gap; break them at speed 1000+, a boost ring always comes first), saws of every size (some on chains or rails), drones that wake and chase you once you pass, rockets (a flashing ! warns you), and fire spouts from the floor and ceiling.

Boost rings launch you forward and make you float a moment. Purple rings flip the world upside down until the next purple ring. Green pads bounce you off the lava; pink bumpers knock you away; updrafts lift you.

Power-ups stack on the left of the screen: shield, magnet, ×2 score, long rope, slow-mo, jetpack (hold in the air), extra life, reel (hold to pull the rope in), heavy ball (smashes saws and drones) and phase (pass through anything).

Modes: Classic, Daily, Co-op, Race, Time Trial, Zen, Hardcore, Low Gravity, 60s Sprint, Shard Rush and Power Gauntlet. Ten biomes, each with its own weather and soundtrack.

Shards from runs and missions buy orbs, trails and items in the shop. Your best run races you as a ghost.

Online: tap ONLINE, pick a name, and you land in a lobby listing everyone who is playing. Challenge anyone: they get the request in-game and can accept or decline. Once they accept you both pick an orb and trail, hit READY, and a countdown starts a 2500m race on the same course. Crashes cost 1.6 seconds, first to the line wins, and if your opponent quits you win.

Two players on one screen: player 1 on mouse or ↑, player 2 (green) on the space bar. On a phone, left half is player 1, right half is player 2.